Difference between revisions of "Caseous Lymphadenitis"
Jump to navigation
Jump to search
| Line 1: | Line 1: | ||
| − | |||
| − | |||
| − | + | ||
| − | + | Caused by [[Corynebacterium ovis]] and [[Corynebacterium pseudotuberculosis|''C. pseudotuberculosis'']] carried on skin of sheep | |
**Non-nitrate-reducing biotype | **Non-nitrate-reducing biotype | ||
**Infection follows tissue trauma such as shearing wounds | **Infection follows tissue trauma such as shearing wounds | ||
| Line 29: | Line 27: | ||
**Antibiotic treatment and topical iodophore shampoo | **Antibiotic treatment and topical iodophore shampoo | ||
*May cause [[Muscles Inflammatory - Pathology#Abscesses|myositis]] | *May cause [[Muscles Inflammatory - Pathology#Abscesses|myositis]] | ||
| + | |||
| + | More information on [[Lymphoreticular - bacterial diseases|lymphobacteria bacterial disease]]. | ||
| + | |||
[[Category:To_Do_-_Clinical]] | [[Category:To_Do_-_Clinical]] | ||
Revision as of 09:58, 28 July 2010
Caused by Corynebacterium ovis and C. pseudotuberculosis carried on skin of sheep
- Non-nitrate-reducing biotype
- Infection follows tissue trauma such as shearing wounds
- Incubation period 3 months
- Chronic suppurative infection of sheep, goats and occasionally cattle
- Abscessation of superficial and internal lymph nodes if haemtogenous spread occurs
- Caseous abscesses with green colour and onion ring appearance
- Ill thrift and pneumonia may occur
- Condemnation of carcasses and hides
- Infection spread by pus from abscesses, and oculonasal secretions
- Organism survives in environment for several months
- Sandwich ELISA detects circulating antibodies to phospholipase toxin
- Control: importation measures including screening; culling of infected sheep, stict hygiene; inactivated vaccine
- Ulcerative lymphangitis:
- Nitrate reducing biotype
- Disease in horses and cattle
- Infection through skin wounds
- Lymphangitis of lower limbs or abscessation in pectoral region
- Slow onset, usually becomes chronic
- Affected lymphatic vessels swollen and firm with nodules
- Oedema in affected limbs
- Ulcerative nodules exude thick green pus
- Lymphangitis and lymphadenitis in cattle with abscesses as well as coronary band lesions causing lameness
- Antibiotic treatment and topical iodophore shampoo
- May cause myositis
More information on lymphobacteria bacterial disease.